Earthquake with magnitude of Md 4.0 on date 08-05-1987 and time 13:10:26 (Italy) in region 3 km NE San Felice sul Panaro (MO)

A magnitude Md 4.0 earthquake occured in region: 3 km NE San Felice sul Panaro (MO), on

  • 08-05-1987 11:10:26 (UTC)
  • 08-05-1987 13:10:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8610, 11.1730 at 5 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Felice sul Panaro MO 3 10900 10900
Medolla MO 8 6308 17208
Camposanto MO 9 3201 20409
Mirandola MO 9 23875 44284
Finale Emilia MO 10 15699 59983
Cavezzo MO 12 7026 67009
Poggio Rusco MN 14 6625 73634
San Giovanni del Dosso MN 14 1248 74882
San Prospero MO 14 5860 80742
San Possidonio MO 14 3619 84361
Crevalcore BO 15 13465 97826
Concordia sulla Secchia MO 16 8641 106467
Ravarino MO 16 6233 112700
Villa Poma MN 16 2023 114723
Magnacavallo MN 16 1561 116284
Schivenoglia MN 16 1203 117487
San Giacomo delle Segnate MN 17 1639 119126
Cento FE 18 35686 154812
Bomporto MO 18 10157 164969
Sant'Agostino FE 19 6853 171822
Sermide MN 19 6189 178011
Pieve di Cento BO 20 7019 185030
Bondeno FE 20 14655 199685
Felonica MN 20 1359 201044
Pieve di Coriano MN 20 1035 202079
Carbonara di Po MN 20 1297 203376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Carpi (70699 inhabitants)
31 Km NE of Modena (184973 inhabitants)
35 Km W of Ferrara (133155 inhabitants)
43 Km NW of Bologna (386663 inhabitants)
46 Km E of Reggio nell'Emilia (171345 inhabitants)
54 Km W of Rovigo (51867 inhabitants)
66 Km S of Verona (258765 inhabitants)
67 Km E of Parma (192836 inhabitants)
71 Km NW of Imola (69797 inhabitants)
82 Km SW of Vicenza (112953 inhabitants)
82 Km SW of Padova (210401 inhabitants)
85 Km NW of Faenza (58541 inhabitants)
95 Km NW of Ravenna (159116 inhabitants)
95 Km E of Cremona (71901 inhabitants)
99 Km NW of Forlì (117913 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 4.0 1987-05-08
11:10:26
44.861 11.173 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 46519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-08 11:10:26 ± 0.084
Latitude 44.8610 ± 0.0071
Longitude 11.1730 ± 0.0105
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 46519

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1141.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 96
Number of defining phases 96
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.05796
Number of stations at which the event was observed 71
Number of stations from which data was used for origin computation 71
Magnitude information

Md:4.0

Field Value
Value 4.0
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 46519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:45:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LBF.Z. 1987-05-08T11:12:48.60 10.0 undecidable manual SN 295 0.0488 1.39 0.1
--.SMF.Z. 1987-05-08T11:12:47.80 10.0 undecidable manual SN 291 0.0486 1.05 0.2
--.HAU.Z. 1987-05-08T11:12:28.00 10.0 undecidable manual SN 314 0.0411 1.22 0.1
--.CDF.Z. 1987-05-08T11:12:24.80 10.0 undecidable manual SN 324 0.0400 1.11 0.2
--.BSF.Z. 1987-05-08T11:12:19.00 10.0 undecidable manual SN 315 0.0380 0.23 0.5
--.LRG.Z. 1987-05-08T11:12:07.60 10.0 undecidable manual SN 249 0.0335 0.98 0.2
--.LMR.Z. 1987-05-08T11:12:06.50 10.0 undecidable manual SN 246 0.0330 0.99 0.2
--.FRF.Z. 1987-05-08T11:12:02.40 10.0 undecidable manual SN 249 0.0314 1.3 0.1
--.CAF.Z. 1987-05-08T11:12:01.60 10.0 undecidable manual PN 273 0.0580 0.07 1.1
--.TCF.Z. 1987-05-08T11:12:01.20 10.0 undecidable manual PN 285 0.0578 -0.07 1.1
--.MAF.Z. 1987-05-08T11:11:57.60 10.0 undecidable manual PN 285 0.0555 -0.18 1.1
--.BGF.Z. 1987-05-08T11:11:55.40 10.0 undecidable manual PN 289 0.0544 -0.71 0.7
--.MOX.Z. 1987-05-08T11:11:54.00 10.0 undecidable manual PN 2 0.0520 1.48 0.1
--.AVF.Z. 1987-05-08T11:11:52.00 10.0 undecidable manual PN 292 0.0520 -0.33 1.1
--.SSF.Z. 1987-05-08T11:11:51.60 10.0 undecidable manual PN 294 0.0518 -0.52 0.9
--.LOR.Z. 1987-05-08T11:11:49.60 10.0 undecidable manual PN 297 0.0504 -0.48 1
--.SBF.Z. 1987-05-08T11:11:47.19 10.0 undecidable manual SN 250 0.0256 1.37 0.1
--.LBF.Z. 1987-05-08T11:11:47.40 10.0 undecidable manual PN 295 0.0488 -0.22 1.2
--.SMF.Z. 1987-05-08T11:11:47.70 10.0 undecidable manual PN 291 0.0486 0.35 1.1
--.CVF.Z. 1987-05-08T11:11:44.90 10.0 undecidable manual SN 216 0.0254 -0.5 0.5
--.GRF.Z. 1987-05-08T11:11:40.00 10.0 undecidable manual PN 0 0.0434 0.68 0.8
--.GWF.Z. 1987-05-08T11:11:38.80 10.0 undecidable manual PN 330 0.0429 0.21 1.3
--.KHC.Z. 1987-05-08T11:11:36.40 10.0 undecidable manual PN 19 0.0411 0.59 1
--.CEY.Z. 1987-05-08T11:11:36.50 10.0 undecidable manual SN 67 0.0220 0.2 0.7
--.HAU.Z. 1987-05-08T11:11:35.60 10.0 undecidable manual PN 314 0.0411 -0.22 1.3
--.CDF.Z. 1987-05-08T11:11:34.00 10.0 undecidable manual PN 324 0.0400 -0.04 1.4
--.BUH.Z. 1987-05-08T11:11:32.00 10.0 undecidable manual PN 332 0.0388 -0.24 1.3
--.CKI.Z. 1987-05-08T11:11:30.00 10.0 undecidable manual SN 258 0.0189 1.91 0
--.BSF.Z. 1987-05-08T11:11:30.80 10.0 undecidable manual PN 315 0.0380 -0.39 1.2
--.MOF.Z. 1987-05-08T11:11:29.20 10.0 undecidable manual PN 318 0.0367 0.07 1.4
--.ASS.Z. 1987-05-08T11:11:28.50 10.0 undecidable manual SN 148 0.0188 0.77 0.4
--.ROF.Z. 1987-05-08T11:11:28.80 10.0 undecidable manual PN 314 0.0367 -0.25 1.4
--.DUI.Z. 1987-05-08T11:11:28.50 10.0 undecidable manual PN 141 0.0359 0.61 1
--.FVI.Z. 1987-05-08T11:11:27.50 10.0 undecidable manual SN 32 0.0185 0.39 0.9
--.VAI.Z. 1987-05-08T11:11:25.30 10.0 undecidable manual SN 301 0.0176 0.57 0.8
--.LRG.Z. 1987-05-08T11:11:24.20 10.0 undecidable manual PN 249 0.0335 0.01 1.5
--.SDI.Z. 1987-05-08T11:11:24.50 10.0 undecidable manual PN 147 0.0332 0.81 0.8
--.LMR.Z. 1987-05-08T11:11:23.20 10.0 undecidable manual PN 246 0.0330 -0.34 1.4
--.ARV.Z. 1987-05-08T11:11:22.00 10.0 undecidable manual SN 136 0.0167 -0.32 0.9
--.FRF.Z. 1987-05-08T11:11:21.00 10.0 undecidable manual PN 249 0.0314 0.01 1.6
--.SLE.Z. 1987-05-08T11:11:21.00 10.0 undecidable manual PN 328 0.0309 0.7 1
--.RMP.Z. 1987-05-08T11:11:18.00 10.0 undecidable manual PN 159 0.0291 0.41 1.4
--.CP9.Z. 1987-05-08T11:11:18.00 10.0 undecidable manual PN 155 0.0294 0.13 1.6
--.RDP.Z. 1987-05-08T11:11:18.50 10.0 undecidable manual PN 159 0.0296 0.18 1.6
--.BNI.Z. 1987-05-08T11:11:17.00 10.0 undecidable manual PN 274 0.0286 0.25 1.6
--.LPL.Z. 1987-05-08T11:11:17.00 10.0 undecidable manual PN 283 0.0287 0.09 1.6
--.LPG.Z. 1987-05-08T11:11:16.80 10.0 undecidable manual PN 282 0.0286 0.12 1.6
--.AQU.Z. 1987-05-08T11:11:15.00 10.0 undecidable manual PN 146 0.0268 1.04 0.6
--.DIX.Z. 1987-05-08T11:11:13.70 10.0 undecidable manual PN 295 0.0261 0.78 1
--.VBY.Z. 1987-05-08T11:11:13.10 10.0 undecidable manual PN 75 0.0265 -0.41 1.5
--.SBF.Z. 1987-05-08T11:11:12.10 10.0 undecidable manual PN 250 0.0256 -0.07 1.7
--.DOI.Z. 1987-05-08T11:11:11.00 10.0 undecidable manual PN 263 0.0253 -0.67 1.1
--.CVF.Z. 1987-05-08T11:11:11.20 10.0 undecidable manual PN 216 0.0254 -0.73 1
--.MDI.Z. 1987-05-08T11:11:11.50 10.0 undecidable manual SN 311 0.0123 0.73 0.6
--.STV.Z. 1987-05-08T11:11:11.90 10.0 undecidable manual PN 258 0.0252 0.36 1.5
--.MNS.Z. 1987-05-08T11:11:10.60 10.0 undecidable manual PN 155 0.0243 0.42 1.5
--.KBA.Z. 1987-05-08T11:11:10.50 10.0 undecidable manual PN 33 0.0241 0.65 1.2
--.LJU.Z. 1987-05-08T11:11:08.60 10.0 undecidable manual PN 61 0.0236 -0.58 1.3
--.PII.Z. 1987-05-08T11:11:07.50 10.0 undecidable manual SN 202 0.0110 0.2 1
--.BOB.Z. 1987-05-08T11:11:07.00 10.0 undecidable manual SN 265 0.0110 -0.21 1
--.IMI.Z. 1987-05-08T11:11:07.50 10.0 undecidable manual PN 248 0.0227 -0.25 1.6
--.CTI.Z. 1987-05-08T11:11:06.00 10.0 undecidable manual SN 15 0.0111 -1.36 0.2
--.CEY.Z. 1987-05-08T11:11:05.60 10.0 undecidable manual PN 67 0.0220 -1.08 0.6
--.ROB.Z. 1987-05-08T11:11:05.40 10.0 undecidable manual PN 257 0.0217 -0.79 1
--.ORO.Z. 1987-05-08T11:11:04.50 10.0 undecidable manual PN 289 0.0213 -1.12 0.5
--.VOY.Z. 1987-05-08T11:11:04.50 10.0 undecidable manual PN 57 0.0201 0.73 1
--.PGD.Z. 1987-05-08T11:11:04.50 10.0 undecidable manual SG 157 0.0095 1.38 0.2
--.RBL.Z. 1987-05-08T11:11:04.00 10.0 undecidable manual PN 45 0.0206 -0.63 1.2
--.FIR.Z. 1987-05-08T11:11:04.00 10.0 undecidable manual SN 176 0.0097 0.07 1
--.CKI.Z. 1987-05-08T11:11:03.50 10.0 undecidable manual PN 258 0.0189 1.56 0.2
--.CM8.Z. 1987-05-08T11:11:03.26 10.0 undecidable manual PN 138 0.0197 0.2 1.7
--.AM8.Z. 1987-05-08T11:11:02.87 10.0 undecidable manual PN 125 0.0196 -0.09 1.7
--.ASS.Z. 1987-05-08T11:11:02.00 10.0 undecidable manual PN 148 0.0188 0.27 1.6
--.FIN.Z. 1987-05-08T11:11:02.70 10.0 undecidable manual PN 253 0.0198 -0.69 1.1
--.FVI.Z. 1987-05-08T11:11:01.50 10.0 undecidable manual PN 32 0.0185 0.13 1.7
--.OSS.Z. 1987-05-08T11:11:01.50 10.0 undecidable manual PN 338 0.0176 1.54 0.2
--.VDL.Z. 1987-05-08T11:11:01.40 10.0 undecidable manual PN 324 0.0181 0.72 1.1
--.TMA.Z. 1987-05-08T11:11:00.80 10.0 undecidable manual PN 308 0.0183 -0.19 1.7
--.VAI.Z. 1987-05-08T11:10:59.50 10.0 undecidable manual PN 301 0.0176 -0.5 1.4
--.ARV.Z. 1987-05-08T11:10:59.00 10.0 undecidable manual PN 136 0.0167 0.39 1.5
--.TRI.Z. 1987-05-08T11:10:59.30 10.0 positive manual PN 63 0.0181 -1.34 0.6
--.BDI.Z. 1987-05-08T11:10:58.00 10.0 undecidable manual SG 207 0.0080 0.11 1
--.SAL.Z. 1987-05-08T11:10:56.00 10.0 undecidable manual SG 328 0.0079 -1.13 0.2
--.GEN.Z. 1987-05-08T11:10:55.80 10.0 undecidable manual PN 255 0.0148 0.12 1.7
--.MDI.Z. 1987-05-08T11:10:52.00 10.0 undecidable manual PN 311 0.0123 0.07 1.7
--.CTI.Z. 1987-05-08T11:10:49.50 10.0 undecidable manual PN 15 0.0111 -0.46 1.4
--.PII.Z. 1987-05-08T11:10:49.50 10.0 undecidable manual PN 202 0.0110 -0.44 1.4
--.BOB.Z. 1987-05-08T11:10:49.50 10.0 undecidable manual PN 265 0.0110 -0.39 1.5
--.PGD.Z. 1987-05-08T11:10:48.00 10.0 undecidable manual PG 157 0.0095 0.48 1.4
--.FIR.Z. 1987-05-08T11:10:48.00 10.0 undecidable manual PN 176 0.0097 0.01 1.7
--.BVT.Z. 1987-05-08T11:10:45.40 10.0 undecidable manual PG 248 0.0093 -1.73 0.1
--.SAL.Z. 1987-05-08T11:10:44.00 10.0 undecidable manual PG 328 0.0079 -0.06 1.7
--.BDI.Z. 1987-05-08T11:10:43.70 10.0 undecidable manual PG 207 0.0080 -0.8 0.9
--.MI5.Z. 1987-05-08T11:10:39.80 10.0 undecidable manual SG 138 0.0032 -0.17 0.7
--.MI5.Z. 1987-05-08T11:10:32.90 10.0 undecidable manual PG 138 0.0032 -1.26 0.4
--.CV4.Z. 1987-05-08T11:10:29.70 10.0 undecidable manual PG 263 0.0021 -1.94 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download